Integrating LIBS and NIR for detection of heavy metals in perlite ores

Conference paper (2016)

Authors

Adriana Guatame-Garcia Resource Engineering - CEG
M.W.N. Buxton Resource Engineering - CEG
Research Group
Resource Engineering (CEG) (TU Delft)
Copyright: © 2016 Adriana Guatame-Garcia, M.W.N. Buxton
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Published Date

2016-2

Language

English

Reuse Rights

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Engineering

Research Group

Resource Engineering

Abstract

Perlite products are used as a filter aid in the food industry. For such applications, the purity of the material is one of the most significant parameters of control. Early detection of heavy metals is therefore of great industrial interest. In this study, a sensor-based approach for chemical and mineralogical characterization enabled the identification of patterns in the distribution of heavy metals in the perlite ore. Integration of Laser-Induced Breakdown Spectroscopy (LIBS) and Near Infrared Spectroscopy (NIR) was used to determine the presence of heavy metals in perlite ores. The results have direct implications for the development of methods and techniques for material characterization, as well as for the mining of perlite ores.